I made some search about this but as often, the planet Z search function ignores 3/4 of the words !

I'm trying to catch CV signal into my Scope system. As usual, I'm SO naïve ! I believed that it would be as easy as thru ASIO between Scope & my daw.

But apparently, it's not ! So... What do I need ? Some kind of CV to audio input converter ? I find plenty of audio to CV converter but not a lot of CV to audio... Just that one for the moment : http://expert-sleepers.co.uk/es2.html

My CV signal is good. I an see it in my analog heat mod input. But I can't see it in Scope. Are all analog audio inputs filtering DC signals like outputs ?

I am waiting for an Expert Sleeper ES-3, for the other way, to send audio through ADAT to CV (I finally made the plunge after all those years thinking about it).

Without it, I would need a DC-coupled audio interface to get a useable signal recognized by the PC as digital audio, and this is generally not the case with audio cards. I think only Motu has/had such connections. Or it is mods by people or companies in elecronics.

I made researches, asked questions, and at the end of the day, for me only Expert sleepers provide CV/Audio/Midi stuff at a resonable price.
So there is no other solution (there are other manufacturers of course but it is generally more expensive).

I remember in the eighties I was shocked that some synths did not have midi but CV only.... in 2018, it looks like a lot of people still use or are new to CV..... (the consequences of Eurorack and synth revival ? )

""" Silent Way CV Input
Silent Way CV Input provides a means of getting control voltages from an analogue synth into the computer, which is not normally possible since the DC voltages of CVs are blocked by the inputs of all current audio interfaces. Once inside the computer, CVs can be recorded, or processed as any other signal before being output back to the synth. ""

but you need to do something like this which is more limited than one of their module:

I am waiting for an Expert Sleeper ES-3, for the other way, to send audio through ADAT to CV (I finally made the plunge after all those years thinking about it).

Without it, I would need a DC-coupled audio interface to get a useable signal recognized by the PC as digital audio, and this is generally not the case with audio cards. I think only Motu has/had such connections. Or it is mods by people or companies in elecronics.

I made researches, asked questions, and at the end of the day, for me only Expert sleepers provide CV/Audio/Midi stuff at a resonable price.
So there is no other solution (there are other manufacturers of course but it is generally more expensive).

I will use it to build CV stuff in Scope.

ANd you? what do you do with CV sent to the Computer?

So... You wired the ES-3 to your Scope system via adat directly ? Is working as wished ?

My problem is that all ADAT I/O are busy on my Xite. I made some tests with the Expert Sleepers "instinct", which replaces the ES-1 & ES-2 and with the silent way CV input plugin. It works fine. But you have to go thru asio for entering and going thru the plugin. This adds latency. Same on the other way.

I'd like to be able to in & outpu CVs directly between Scope & my new CV hardware devices. So I'm going to try the Expert sleepers ES-8 : an usb class compliant audio interface, DC coupled. But ! On windows, one can't use 2 asio devices in 1 application such a daw. Pffff ! So, I'll use Voice meeter banana which allows that.

If the "sound card dest/source" Scope module would work perfectly, it would be A-WE-SO-ME for that kind of problematics.

I switched to Z-Link a while ago (Xite to A16 Ultra), so I still have 16 i/o adat free. the ES-3 takes 8 outputs now
I don't know what can be done if you have no outputs left.

The ES-3 works very fine: the range is exactly 3 octaves of pitch (+ 0 to +36 semitones) and the whole filter/volume range of the machines I control. For the moment just my old minitaur and a ms20 mini - so it is correct at least in CV/Eurorack and V/Hz mode and without latency, which is what I would settle for, because I do time based modulators which should be useable live and must be in-sync with the drums etc which can be VST plugins if desired (for those who are not "dawless fanatics" ) .

The disting is too limited for me (2 i/o for audio to CV only - and you need 2 or 3 per synth, for pitch/filter/volume or more for some synths). not sure i would use the other functions of the disting.

May be try to find a used ES-1 for the outputs?
or an a16-ultra for more i/os if you can use Z-Link. or another pc with a scope board

Maybe one day, a genius will have the awesome idea to make a vst plugin that would send audio to a second audio interface ! That should be possible : Elektron's Overbridge is a vst that send & receives audio from Elektron's hardware, the Virus integration too (but far from perfect !).
For the moment, the only way I know is voice meeter.

By reading around on Expert Sleepers site about the ES-8 module, I discovered "Audulus", a modular app first for android & ipad (I hate touch screens) and now also for windows. It's a standalone or vst. The standalone interest me : I can setup its audio interface as ES-8. So I'm trying it.

The bad thing seems that everything must be done with mouse ! I prefer jeyboard shorcuts but I can handle with that. And the very very good part is that it comes with a lot of modules ; but one can "enter" in the modules which are build with "atoms" ! For instance, here you have the "basic LFO" inside :

basic lfo.jpg (116.15 KiB) Viewed 1929 times

So, it looks like Scope SDK atoms or Reaktor core level ! That is very interesting for interacting with eurorack via Expert Sleepers modules ! Opening wide possibilities ! And you can see some text field that give infos & explaination all around. All signal are animated in real time, apparently blue = negative, red = positive darker for high values on all wires and inputs.

I guess I'm going to have a lot of fun with that ! And the price is correct : 51.12€ !

Just for those who did not know (like me) you can find cheaper audio/CV converter by getting a eurorack CV mixer/attenuator that is dc-coupled, and preferably that knows to do both audio and CV. I've seen some modules from Doepfer or Erica Synths and others. They are around 55/60 euros in general, but have 2 i/os in general, so the ES 3 is still the best for price per number of i/os.
The specialized shops will know which ones will do it so ask them. i am sure it does the audio to CV conversion, but not sure it does the CV to audio (not all of them even if the inputs are dc-coupled).

I am getting an Erica Pico VCO. I will use it in MS20 and Minitaur filters. When it it wlll be possible , I'll probably get a DSI Curtis Filter.
Then the rest will be made in Scope to save a lot of money on modulators, VCA etc